Car-haul.



PATENTED MAY 31, 1904.

. P. v. HETZEL.

OAR HAUL. APPLIOAT ION FILED MAR. 'l". 1903.

2 SHEETS-$331 1.

NO MODBL'.

110.761, 184. I PATENTED'MAY 31,1904.

' F. v. HBTZEL. GAR HAUL;

.' APPLICATION FILED MAR. 7. 1903.

' NO I 2 SHEETS-SHEET 2.

IZUEIZiOp.

UNITED STATES Patented May 31, 1904.

PATENT OFFICE.

FREDERIO V. HETZEL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO- THE LINKBELT ENGINEERING COMPANY, OF PHILADELPHIA, SYLVANIA, A CORPORATION OFPENNSYLVANIA.

PENN- OAR-HAUL.

SPECIFICATION forming part of Letters PatentNo. 761,484, dated May 31,1904.

Application filed March 7, 1903.

To all whom it may concern:

Be it known that I, FREDERIG V. HETZEL, a, citizen of the United States,residing in Philadelphia, Pennsylvania, have invented certainImprovements in Oar-Hauls, of which the following is a specification. Y

My invention relates to certain improvements in car-hauls used fortransferring a car from the pit-opening of a mine or other lower levelto an elevated point, where the car is unloaded. v

The main object of my invention isto decrease the strain upon thedrive-chain of the car-haul without lessening the output of the I plant.Thi's object I attain by increasing the speed of the chain on theinclined plane.

A further object of my invention is to increase the speed of the maindrive-chain and allow the chain to engage the car without undue shock.This object I attainby providing anauxiliary chain which is driven atthe ordinary speed, so that it will engage the car and set it in motionand so that the car will be under way when the main chain, which isdriven at a higher speed, engages it.

Oar-hauls as ordinarilyconstructed consis of an inclined track, uponwhich the car wheels travel, and an endless chain having lugs arrangedto engage a car. The speed of 0 the-chain is limited, owing to the factthat the chain must engage the car at the base of the inclined plane andcarry it up to the discharge-point, and if the chain is travelingat toohigh a speed the shock will be so great as to not only affect themachinery, but injure the car or cause it to jump the track; but whenthe car is once on the inclined plane the speed of the chain can bematerially increased withoutany bad effect.

In the accompanying drawings, Figure 1 is a side view of the baseportion of .a car-haul, illustrating my invention. Fig. 2 is a plan viewof Fig. l.- Fig. 3 is a transverse sectional view on the line 3 3, Fig.1, looking in the direction of the arrow; and Fig. A is a diagram Viewof a modification.

A A are the rails of the track, mounted on suitable ties at a in theusual manner. The

swarm. 146,705. '(No model.)

Fig. 2, the chain is situated midway between the tracks A A and has lugsor projections b, which engage a portion of the car. The chain I can beof any type desired without departing from the main'feature of myinvention.

G is a coal-car of the ordinary type having flanged wheels 9 g, whichtravel on the rails A A, and depending from the center portion of thecar in the present instance are brackets i, carrying a bar a, with whichone of the lugs Z) of the main chain B engages. By placing the bar inthe position shown the jolting or other motion of the car will notdisengage the carfrom the lug b, as it is at the point of least motion.4

D is an auxiliary chain passing around a sprocket-wheel C on the shaft Eand around a sprocket-wheel F, some distance from the shaft E. Thiswheel is secured to a shaft F,mounted an idler O on the shaft E, mountedin bearings e e. The bearings for the shafts E, C and F are preferablyadjustable-- In the drawings I have shown the sprocketwheel O one-halfthe diameter of the sprocketwheel C, so that the chainD travels atone-half the speed of the chain .13. The idler O is placed in theposition shown to elevate the chain D and keep its upper run in-theproper line with the rails A, so that the lug d on the chain will engagethe bumper it on the end of the car Gr.

It will be understood that the relative diameters of the sprocket-wheelsC and C will vary according to the speed of the shaft and the desiredspeed of the chains.

Itwill be noticed in the drawings that in the present instance there isonly one lug (Z on the chain D, and this is so arranged in respect tothe lugs b on the main drive-chain B that the lugs b will engage the carbefore the lug (Z disengages it, so that from the moment the car startsit is under the complete control of the chains.

If desired, the chain D may have more than one lug (Z, in which case thelength of the chain will be increased or the lugs on the maincarrying-chain would be arranged closer together.

While I have shown in Fig. 1 only one auxiliary chain, which is drivenat half the speed of the main drive-chain, there may be two or moreauxiliary chains, as shown in the diagram Fig. 4:, which illustrates twoauxiliary chains D and D, the chain D being driven from a wheel F on theshaft F.

In place of the chains shown ropes may be .used having projections orlugs secured to them in any suitable manner; but I prefer to use thedrive-chain shown.

The supporting structure may be constructed in any manner, and I havenot entered into the details of this, as any suitable supportingstructure can be used.

By the above construction it will be seen that the speed of the mainchain B can be increased to double the ordinary speed of the chain byplacing the car in motion by means of the auxiliary chain D before themain chain B engages it. Thus the same number of cars,

or even more, can be delivered at the top of the car-haul with a lessnumber of cars on the inclined plane, and consequently the strain on thechain is decreased, and in some instances a lighter chain can be usedthan heretofore.

While I have shown the auxiliary chain D driven from the same shaft asthe main chain B, it will be understood that separate driving mechanismmay be used, if desired; but I prefer the construction shown, as itsimplifies the drive.

I claim as my invention 1. The combination in acar-haul, ofa track, amain drive-chain and an auxiliary drivechain, each having lugs,sprocket-wheels for the said chains, a shaft on which two of saidsprocket wheels are mounted and through which motion is imparted fromone chain to the other, substantially as described.

2. The combination in a car-haul, of the track, a main drive-chain, ashaft, a sprocketwheel mounted on the shaft around which the main chainpasses, a lug on the main chain arranged to engage a car, asprocket-wheel on said shaft less in diameter than the mainsprocket-wheel, an auxiliarydrive-chain passing around the said smallsprocket-wheel and having a lug arranged to engage the car so that thecar will be first set in motion by the auxiliary chain and will betransferred by it to the main chain, substantially as described.

3. The combination of a track upon which travels the car to bepropelled, a shaft, two sprocket-wheels on the shaft one sprocketwheelbeing less in diameter than the other, a main drive-chain passing aroundthe larger sprocket-wheel and having a series of lugs which engage thecar, with an auxiliary chain passing around the small sprocket-wheel andhaving a lug engaging the car, the main chain extending upward betweenthe inclined tracks and the auxiliary chain extending between thehorizontal tracks, the lugs of the chains being so arranged that the carwill be setin motion by the auxiliary chain and transferred to the mainchain which is driven at a greater speed, substantially as described.

4. The combination in a car-haul, of the horizontal and inclined tracks,a driving-shaft having two sprocket-wheels thereon, one of greaterdiameter than the other, a main drivechain mounted between the inclinedtracks passing around the large sprocket-wheel and having one or morelugs thereon, an auxiliary chain passing around the small sprocketwheeland extending around the horizontal portion of the track, a car mountedon the track, a central bar on the car and a bumper on the car, the lugon the auxiliary chain ongaging the bumper and the lug on the main chainengaging the bar before the lug on the auxiliary chain leaves the bumperof the car, substantially as described.

5. The combination in a car-haul, of a track, a main drive-chain and anauxiliary drivechain, sprocket-wheels for the chains, a shaft, two ofthe sprocket-wheels mounted on said shaft, the sprocket-wheel for theauxiliary chain being less in diameter than the wheel for the mainchain, and an idler for guiding the auxiliary chain, substantially asdescribed.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

FREDERIC V. HETZEL.

Vitnesses: I

VVILL. A. BARR, Jos. H. KLEIN.

